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In addition, ASL was involved in studying the effects of an eclipse on the upper atmosphere of the earth and the outer atmosphere of the sun. During the 1979 solar eclipse, ASL performed experiments with the National Research Council of Canada , the Air Force Geophysics Laboratory , and NASA to measure various atmospheric properties during the ...
The radial current in the circuit is on the order of 3 × 10 9 amperes. [2] As a comparison with other astrophysical electric currents, the Birkeland currents that supply the Earth's aurora are about a thousand times weaker at a million amperes. The maximum current density in the sheet is on the order of 10 −10 A/m 2 (10 −4 A/km 2).
On 8 May 2024, a solar active region which had been assigned the NOAA region number 13664 (AR3664) produced an X1.0-class and multiple M-class solar flares and launched several coronal mass ejections (CMEs) toward Earth. [6] On 9 May, the active region produced an X2.25- and X1.12-class flare each associated with a full-halo CME.
The Latin version of the fable first appeared centuries later in Avianus, as De Vento et Sole (Of the Wind and the Sun, Fable 4); [3] early versions in English and Johann Gottfried Herder's poetic version in German (Wind und Sonne) named it similarly. It was only in mid-Victorian times that the title "The North Wind and the Sun" began to be used.
Meteorology is a branch of the atmospheric sciences (which include atmospheric chemistry and physics) with a major focus on weather forecasting.The study of meteorology dates back millennia, though significant progress in meteorology did not begin until the 18th century.
"Sunjammer" is a science fiction short story by British writer Arthur C. Clarke, originally published in the March 1964 issue of Boys' Life. [1] The story has also been published under the title "The Wind from the Sun" in Clarke's 1972 collection of short stories with this title.
In the poem, the narrator admires the bird as it hovers in the air, suggesting that it controls the wind as a man may control a horse. The bird then suddenly swoops downwards and "rebuffed the big wind". The bird can be viewed as a metaphor for Christ or of divine epiphany. Hopkins called "The Windhover" "the best thing [he] ever wrote". [2]
"The Wind from the Sun") depicts a race to the Moon between solar sail-propelled spacecraft. [5] [6] [60] [62] Robert A. Heinlein had earlier written about a proto-variation on the concept using an inertialess drive. [60] The 1990 anthology Project Solar Sail edited by Clarke and David Brin collects various stories and essays about solar sails ...